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Should Deck Screws Be Flush?

Elena Rostova • • 6 min read
Should Deck Screws Be Flush?

Conclusion: Deck Screws Should Be Counter Sunk Never Flush
Installing deck screws slightly below the surface accommodate the shrinking of the decking as the boards dry. Doing this will create a clean surface for the decking for walking on while minimizing the visual effect of the screw heads.

How deep should decking screws be?

Screws or Nails? We would recommend using deck screws to fix your deck boards down, ensuring that the screw length is at least 2.5 times the thickness of the board to be fixed. Screws should be positioned at quarter points i.e. 25% in from the board edges and 25mm in from board ends.

Do I need to countersink composite deck screws?

DO NOT countersink screws. Use recommended stainless steel screws in any areas near bodies of saltwater. Trex Fascia utilized around the perimeter of a deck must be gapped with the same requirements as Trex decking to allow for air flow and expansion/contraction of the fascia.

Elena Rostova
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Elena Rostova

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.